[INFO] fetching crate splaycast 0.1.0...
[INFO] checking splaycast-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate splaycast 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate splaycast 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate splaycast 0.1.0
[INFO] finished tweaking crates.io crate splaycast 0.1.0
[INFO] tweaked toml for crates.io crate splaycast 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 110 packages
[INFO] [stderr]       Adding anes v0.1.6 (latest: v0.2.0)
[INFO] [stderr]       Adding env_logger v0.10.2 (latest: v0.11.3)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-log v0.2.15
[INFO] [stderr]   Downloaded env_filter v0.1.0
[INFO] [stderr]   Downloaded test-log-macros v0.2.15
[INFO] [stderr]   Downloaded env_logger v0.11.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 963720802ae6f5502a81339ebbfa8a875d6c7a631504bf58665b9fe750968c34
[INFO] running `Command { std: "docker" "start" "-a" "963720802ae6f5502a81339ebbfa8a875d6c7a631504bf58665b9fe750968c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "963720802ae6f5502a81339ebbfa8a875d6c7a631504bf58665b9fe750968c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "963720802ae6f5502a81339ebbfa8a875d6c7a631504bf58665b9fe750968c34", kill_on_drop: false }`
[INFO] [stdout] 963720802ae6f5502a81339ebbfa8a875d6c7a631504bf58665b9fe750968c34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 531d8a5fc28ddc6cf9e7abfbbe40b5a7fa801005534e95e1146d67d671b2dd06
[INFO] running `Command { std: "docker" "start" "-a" "531d8a5fc28ddc6cf9e7abfbbe40b5a7fa801005534e95e1146d67d671b2dd06", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]    Compiling test-log-macros v0.2.15
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]     Checking env_logger v0.11.3
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking test-log v0.2.15
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking splaycast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.11s
[INFO] running `Command { std: "docker" "inspect" "531d8a5fc28ddc6cf9e7abfbbe40b5a7fa801005534e95e1146d67d671b2dd06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531d8a5fc28ddc6cf9e7abfbbe40b5a7fa801005534e95e1146d67d671b2dd06", kill_on_drop: false }`
[INFO] [stdout] 531d8a5fc28ddc6cf9e7abfbbe40b5a7fa801005534e95e1146d67d671b2dd06